I have a Diecimila and recently found an old wall plug that is 7.5 v and 300 ma and plugged it into the Diecimila without looking at the polarity. Voltage is on the outside with ground in the middle. All my other plugs have voltage in the middle.
I only had it plugged in for a few seconds and it seems ok now.
Did I damage my Diecimila?
Thanks.